The noun has 2 meanings:
Meaning #1:
a white or colorless slightly acid solid that is soluble in water and ethanol; used in the manufacture of glass and paper and adhesives and in detergents and as a flux in welding; also used as an antiseptic and food preservative
Synonym: orthoboric acid
Meaning #2:
any of various acids containing boron and oxygen
Synonym: boracic acid




